1321040

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{337}}^1$

素因数の和:364

約数の個数: 60

約数和(自身を含む): 3583476

約数和(自身を除く): 2262436

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 337, 392, 490, 560, 674, 784, 980, 1348, 1685, 1960, 2359, 2696, 3370, 3920, 4718, 5392, 6740, 9436, 11795, 13480, 16513, 18872, 23590, 26960, 33026, 37744, 47180, 66052, 82565, 94360, 132104, 165130, 188720, 264208, 330260, 660520, 1321040]

約数ペア:

[(1, 1321040), (2, 660520), (4, 330260), (5, 264208), (7, 188720), (8, 165130), (10, 132104), (14, 94360), (16, 82565), (20, 66052), (28, 47180), (35, 37744), (40, 33026), (49, 26960), (56, 23590), (70, 18872), (80, 16513), (98, 13480), (112, 11795), (140, 9436), (196, 6740), (245, 5392), (280, 4718), (337, 3920), (392, 3370), (490, 2696), (560, 2359), (674, 1960), (784, 1685), (980, 1348)]